Home / 1,259,715,610.20-1,889,573,415.30-646,361,837.40

Finding the Fourth Proportional to 1,259,715,610.20, 1,889,573,415.30 and 646,361,837.40

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Solution

The fourth proportional to 1,259,715,610.20, 1,889,573,415.30 and 646,361,837.40 is: 969,542,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,715,610.20 : 1,889,573,415.30 = 646,361,837.40 : x
  2. Step 2: Convert to fraction form
    1,259,715,610.20/1,889,573,415.30 = 646,361,837.40/x
  3. Step 3: Cross multiply
    1,259,715,610.20x = 1,889,573,415.30 × 646,361,837.40
  4. Step 4: Simplify right side
    1,259,715,610.20x = 1,221,348,144,615,501,312
  5. Step 5: Solve for x
    x = 1,221,348,144,615,501,312/1,259,715,610.20
  6. Step 6: Final answer
    x = 969,542,756.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.